[PATCH 5.15.x] RDMA/irdma: Fix support for 64k pages

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From: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>

[ Upstream commit 03769f72d66edab82484449ed594cb6b00ae0223 ]

Virtual QP and CQ require a 4K HW page size but the driver passes
PAGE_SIZE to ib_umem_find_best_pgsz() instead.

Fix this by using the appropriate 4k value in the bitmap passed to
ib_umem_find_best_pgsz().

Patch reworked to handle the different pre-split context.

Fixes: 693a5386eff0 ("RDMA/irdma: Split mr alloc and free into new functions")
Link: https://lore.kernel.org/r/20231129202143.1434-4-shiraz.saleem@xxxxxxxxx
Signed-off-by: Mike Marciniszyn <mike.marciniszyn@xxxxxxxxx>
Signed-off-by: Shiraz Saleem <shiraz.saleem@xxxxxxxxx>
Signed-off-by: Jason Gunthorpe <jgg@xxxxxxxxxx>
---
 drivers/infiniband/hw/irdma/verbs.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/drivers/infiniband/hw/irdma/verbs.c b/drivers/infiniband/hw/irdma/verbs.c
index fa1ccd6a9400..745712e1d7de 100644
--- a/drivers/infiniband/hw/irdma/verbs.c
+++ b/drivers/infiniband/hw/irdma/verbs.c
@@ -2763,7 +2763,7 @@ static struct ib_mr *irdma_reg_user_mr(struct ib_pd *pd, u64 start, u64 len,
 	iwmr->ibmr.pd = pd;
 	iwmr->ibmr.device = pd->device;
 	iwmr->ibmr.iova = virt;
-	iwmr->page_size = PAGE_SIZE;
+	iwmr->page_size = SZ_4K;;
 
 	if (req.reg_type == IRDMA_MEMREG_TYPE_MEM) {
 		iwmr->page_size = ib_umem_find_best_pgsz(region,
-- 
1.8.3.1





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